User manual PFAFF 138-6

[. . . ] € Important notes To avoid trouble or damage ills absolutely neces sary to observe the following instiuctions: • Bøfpr ‘bu put the machine into operation for the first time clean it fhoroughly, remove all dust which has accumulated on it in transit and oil it well (see pages 4 + 5). € Check to make sure the line vottage agrees with the voltage indicated on the motor rating plate, If It does not, be sure not to plug ri the machine. • The balance wheel should always rotate to ward you. If it does not, exchange the wires on the motor. [. . . ] Achtung: Ohna Fingerschutz Verletzungsgetahrl Dangert Do not operate without tnger guard Attention: Sans protège-doigts, nsque daccident!Regulating the stitch length Turn thumb nut S clockwise for shorter stitches, or counter-clockwise for longer stitches. The numbers on the scale indicate the approximate stitch length in millimeters. reverse sewing Push feed regutator lever S up as far as it wilt go and hold in there. The reverse sthches are as tong as the ones set for forward sewing. Regulating the needle thread tension Always lower the presser bar before you regulate the needle thread tension. To increase the ten sion, turn knurled nut I or 2 clockwise, to de crease the tension, turn It counter-clockwise. Regulating the bobbin thread tension Turn the regulating screw clockwise for a tighter tension, or counter-clockwise for a weaker ten sion. Stichiage links Hebel H in Stellung: I II = Stichlaga mute Setting the needle position Lever H serves to Set the needle position. Its three positions are as follows: left needle position central needle position II Ill = Tight needle position The needle position can be changed during sew ing. However, when the machine is not in operation, always raise the needle belore you change the needle positron. Regulating the stitch width The stitch width is regulated by turning knob G. When knob 0 is turned so that pointer Z points at 0, the machine sews straight stitches. Grill 0 Tirehen, so dali Locking the stitch width slide in position lighten screw B. Turn knob 0 so that pointer Z snaps in place in slideS. Loosen screw B and turn knob 0 to the desired stitch width. Again tighten screw Bto lock the stitch width slide. When knob G is turned back after a change in stitch width, the original setting will thus be restored exactly. Regulating the pressure on the material The presser foot pressure must be adapted to the material being sewn. Heavy and stiff materials require a stronger pressure, while light and thin materials are sewn with a weaker presser foot pressure. Turn regulaling screw V clockwise for a stronger pressure, or counter-clockwise for a weaker pres sure. Raising the presser foot The presser foot can be raised by means of the hand lever at the back of the machine head or by operating the knee lever. [. . . ] 0, cover plate 91-041 844-25 Replace the presser tool by the cording fool (Fig. Slip prong a of the cording slide into hole b, open the bad slide a little, push the resilient prongs C arid d over the edge of the needle plate, and close the bed slide again. ) The needle gauge can be varied from 2 to 3, 4. -915/05 Turn screw T counter-clockwise to increase the needle gauge, or clockwise, to decrease it. [. . . ]